Pump



O. F. LlLLIA Aug. 2o, 1935.

PUMP

Filed Nov. l5, 1928 2 Sheets-Shes?I l S14/vanto@ Aug. 20, 1935.

O. F. LILLIA PUMP Filed NOV. l5, 1928 2 Sheets-Sheet 2 VPatented Aug. 20, 1935 l' y entre Ys "rares enrsnr eerie-15:

PUDE

lof Frithiof Lillia, Detroit, Mich.,.assignor to vDetroit Lubricator Company, Detroit, Mich., a

corporation of Michigan Application November 15,1928, Serial No. 319,715

' 15 claims. (C1. isi- 27) o K "f Myinvention relatesto new and useful improve- Through the top wallf' is va filling openingwhich ments in pumps, and more particularly to pumps opens into reservoir Il, and is closedbya-cover -of the reciprocating type. or cap member' I8 hingedto'the casing I by a object of my invention is to provide means hinge pin i9; o o 5 for regulating the displacement of a uid de- In the pump chamber i5' are a plurality-'of 255- livery pump. alined and laterally spaced pumps 20"'Which are Another object is to provide means whereby a positioned in a common vertical lplane substanplurality of pumps actuated by a common driving tially parallel to partition 'l and' which `are of member may be independently regulated to prosimilarconstruction so that a detaileddescrip- A 10 ,videA a desired discharge from each of the pumps. tion of one of the pumps f20 lwill sui'ce for all. l1l)- The invention consists in the improved ccn- `Anydesired number of pumps `may-*be employed, struction .and combination of parts, to be more depending upon the number of ieedlines-which l fully described hereinafter and the novelty of the lubricator is to supply. Through the base! Whiehewll be particularly pointed out and dsbeneatnpartition- I4 isian aperture-z'lf'wnicniso 'k ztinctly claimed. closed by a screw plug 22'which supports and has '15 o In the accompanying drawings, t0 be taken as secured-thereto, as at 23, a-nlterl medium 2u. apart of this Speeieatien, I have fully and clearly preferably a substantially cylindrical wire screen illustrated a preferred embodiment of my inven- 0f fine mesh Directly above the 'apertre-Zl tion, in Which draWiIlgS- is an internally threaded apertureZS-'through `Figure l'is a View in front elevation 0f my inthe partition i4' into-wnich-is-tnreadedfaxed 2o vention as embodied in a lubricator of the force pump plunger', or piston 26.' Whloh Aextends' upfeedftypephaVIlg the TOD'G COVBX plate TemOVed, wardly into chamber I5"and has, at'its lower-end, and certainof the pump. cylinders omitted for .a head lg'lwhloll lits tightly: inl-,o thozupperoend Clarity 0f illustration? v of strainer 2, as at 28. Longitudinally through S 2. View Vertical Section On the plunger a hollowvbore zgfwhich-opens y 2-2 ef Fie. 1; at its lower end into an internauy threaded-recess Fig. 3 is a detail plan view, partially in hori- 3g ln head '2l Secured in thorooess 3ga=by-a Zontal central section of a pump actuating memhollow plugmgl lsoJ `Volvo retaining Spider 32 benen@ a l The bore of plug 3l is 'enlargedv` in successive FigA is a detail sectionon the line 4 1! of Fig. 2. Stages to provide upwardly .facing ,Valve $3,138.33, 30 ,Y Referring 150,511@ drawings by Chalters 0f 3`for cooperation Withr'valve members`35, 36,

- reference, I designates generally a easing 0f a preferably of the ban `cheektypewhichmen uplllblQaftOT Qf the, force feed type Such as is em* wardly to permit flow from chambeiW-H` to the ployed in the lubrication of moving engine parts, boe 2g. Mounted on thexed plunger zoforfvep Y Y and particularlythe parts of a locomotive engine. tical rooprooatlom is a pump Cylinder 31y having `35 The Casing i serve s as a Support fr0? Certain pump a longitudinal bore 38 therethrough with anirrv means t0 be descrlbed and comprises a Sgbstan' ternal annular ilange 3S substantiallymidwayof tially rectangular bottom wall 2 from which rise its length Wll-,hlnlho boro 38asurroundlngathe y substantially vertical side walls 3, 4, and a rear plunger 21 are spaced guide Sleeves 4o; '41. and

Wan 5. The Sde and, Tear Walls s upport a @Op between which and around the plunger 26`are :40

Wan si 'from Whlch depends a' parano?? Whlch packing rings 42 of any suitable material.' The 30H15 the Side Walls 3 4 and extends adJaCent t0 rings 42 lare compressedaxially and* expanded thefbttom Wan 2 leaving a; Passage 8 theebe'- radially toprevent escape of oilbetween-the l o neath.- The front of the casing l is closed to subplunger 23y andthe Sleeves 4g, 5l fby `dooll Spring Y Stantluy One-third 0f its height by a Wan 9, abOVe G3 which surrounds plunger 26 and seats` on sleeve 45 which and closing the remainder of the front is a tm, and which is held under compression i byv a COVBlDlatel membel m Which iS lemOVably Sepacking nut M threaded into the cylinderbore cured in place by. Studs il SCTeWed HO tapped 38, as at t5. Within the bore 38 is-a Vvalve-sleeve 110165 5.2'111 the 035mg, and by nuts 3 All the member 46 which is of reduceddiam'eter,` as=at top of the front wall 9 is a horizontal partition di, to fit within the flange Sla-the reduci-,ion frm- 50* Ili'vvhich joins the side walls 3, d and the parti-y ing an annular shoulder i8 Which's'eats von` the tion J, and dividesthe front portion of the casing flange lllto support.member-133'.v Ther member l into apump chamber l5 and an oil chamber i6. has alongitudinal bore 49 whichiisenlargedQas Therearportion of the casing l between partiat 50, to provide la valve chamberand'an up@ B5 tion 1. and wallA 5 forms an oil reservoir I'I.` wardly facing annular valvefseatlfor coopera;- 5:;

tion With a valve 52,'prefe'rably of the ball type,

' which is normally held toits seat by a spring .member 5 3 held under compression by a spider 54 which is fixed to member 46,y preferably by Vburnishing the same over onto the spider 54.

Through the topwall 6 in vertical axial alinement With the xed piston or plunger 26 is'an-internally threaded aperture 56 vinto Which is threaded a second pumpplungersor piston 51 which extends downward"through.vrall 6 into the bore 38 of cylinder` 31. Within the bore 38 above spider 54H are 'spaced guide sleeves 58, 59, which surround y plunger 51, the sleeve 58 seating on the spider 5,4J j

and between the sleeves 58, 59 are packing rings 60 which surround the plunger51. Acting on the sleeve 59 and surrounding plunger 51 is a spring'` member 6|, preferably of the coilftype, which is held under compression by a packing Anut 62 threaded into. the upper .end of cylinder 31,V asl at 63. The spring member 6| serves to compress ",thepacking rings' 60V axially and expand them iradially-to prevent leakage of oil past the plunger 51.5 .'I'hacross-sectional area'of plungery 5,1 is substantially one-halfthe cross-sectional area of izplungeru, so .that reciprocation of the cylinder .3 1, will-delivern oil on boththe .up and the down strokes, Y Longitudinally 'through the plunger 51 .fis a bore -64 Whichisfenlarged atA its upper end` to .provide` an annular shoulderr65 serving as a valveseat for cooperation with a valve,66,*pref verably of the ball type, which isretained in the enlargement'of the-bore 64 by a`fspider 61,prefl erably vfixed in placeby burnishing, Vor the like.

V.Thaenlargement of lb ore 64 opens into an internally threadedy recess 68 into which is threaded afplug69 throughWhich is a passage10 trans,-

.versetomtheglongitudinal axis of; the plunger 51. IIn theplug 69 is an axial .passage 1| which opens from-the recess 68 intothe passage 10. Surrounding the plug 69in the horizontal plane of passage is a. circumferential bearing recess 12, within ,which the plug ,69 has av circumferential. groove 13 ".communicating` with kthe ends Yof passage y10.

,..Iournaled in the bearing recess 12 isa ring mem- Y :ber Y ,14 having a radial boss or extension'15 through which isa passage vr16 substantially in the ,planeof passage 10 and which 0pens .a.trits inner i end into the groove V13. YThe outer `end of boss V1:5 may be providedwith a nipple connection fv-onunion'yvith a feed line or Vc onduit (notshown)` fior delivery of"lubricant to the engine Working parts ...Leakagefbetween ring member 14 and4 plug 69 maybe prevented by the use'of gaskets 18,',or the like. l

within .thefpump harber.V l5 vthe'urivmg mechanism for the pump' cylinders 31. xAdljacentthepartition1 and spaced Vequidistant from .the vertical center line, of casing are-vertical A.jguide'rods 1 9, 80 which are xed lat their upper .ends in bosses 8| depending from vtop'vvall 6 and atztheir-Y l-oWer4 ends in bosses 82 on the partitionVV gilt.V Supported jon rods 19, 801s a reciprocating Ain eans comprising av plate Vmember 83 YhavingV .tively of thefopening 89. `ilransversel'y through the plate memberY 83.

slide block 90 isa cylindrical aperture 93 .which serves as a journal bearing for an eccentric 94 Vwhich is xed on adrive shaft 95. The shaft'95 may be journaled in any suitable manner for rotation, but is preferably supported journal bearings (not shown)V carried by depending par-Y tition 1 and. cover` member I0, and projects fromv member.; |0 for engagementV by any suitable means for rotating the same. Projecting from cylinders 31 adjacentthe top and bottom ends thereof are horizontal lugs or flanges 96,V 91

respectively which serve as abutments, 1 and which over andv under lie the ribs 86,V 81 respecj tively, but which are spaced'apart 'verticallya greater'distancev than the -ribs 86, 81.

A' Each of lugs '96 has a vertical tappedA hole 98 therethrough which l@verlies rib as, and threadedy through each hole 98 is an adjustment pin or screvv member 99 Afor cooperation with rib 86 andl having a polygonalportion |00.providingv abutment faces |0|.' Each of the pins 99 rwith its lugY 96 provides an adjustable abutment. VIn the wall of each cylinder 31 is a horizontal cylindrical socket |||2V whichlis positioned at a point Within the vertical limits of adjustment of.- the head |00. Within socket |02,.is'a pin or detent mem'- berY |03 which is 4longitudinally sldable" therein vand normally Ypressed into engagement witha Y face. |0| of. the portion |00r by a spring member V l position. The upper end of each member 99 is |04 to thereby hold 1the'member-99 in adjusted provided with a slot or kerf |05 for engagement by an adjusting tool such as a screw driver.

Through the Vtopfwall 6 of casingl is an opening` |06 which is directly above the members '99 for V access'thereto. and whichis closedbya coverY member |01 pivoted ona pin. |08 so that it may be swung into or out of closing relation to open-V ing |96. l member 83 beneath'` the rib 81-=are pairs of vertical spacedy guide members |09 which cooperate with'lugs 91 to guide thevertical-'reciprocation of the cylinders 31 .and prevent rotation of th cylinders on the pistons orplungersy The operation of` mydevice is as follows: .The

nipples 11Y are connected to conduits or pipes (not shown) which'lead'to VtheY engine parts to .bei

lubricated," and theshaft 95" is operatively connected to aV drive means which'will rotate the shaft and thereby cause.vertical-reciprocation of the cross-sectionalareaV of plunger V51` is substan tially one-"half the'cross-'sectional area-of'plungerv 26 and therefore reciprocaticn of cylinder 31 will cause a continuous feedV of oil since the piston 26 on the down stroke of cylinder 31`will 4forcetwice Y as much'. oil above check valve 52 as can* be` retainedin the* cylinder thereabove, and uponl Extending Yforward "from the. plate 'I'he reservoir" |1 and Vchamber rIEY are'then Vfilled with oilV or other juid lubri'cantbyrneans'of thellinggopening Vnormally closed by cover memberk |8,. It will be noted vthat the 11p-stroke the oil'remined above valve 52 will be displaced by p'istcrn51r'.Y In Fig. 2,'the pump 20 k is shown as i adjusted for VK'maximum feed, Y `since themember99 Vis in Yengagement with flange. I6 and'lug91 is .in'rengagement With'nange 81 so that'cylinder 31 must move with 'andf'to the fullV .extent of the. stroke or movement of member 83.` Anyv of the pumps `20may have the feed there#A from discontinued by sliding jcovermemberr |01.

tween head |700 and lug 91 is greaterthan the distance between the .top and bottom faces of l.iiang'es .86,181 yrespectively plus the stroke f vfrom slotpl06, and then'linscrewing the Ymember 99 to raise the 'headI09 untilthe distance be` Y :8.1, il e.; .the distance member. 83 is moved in one.'direction'.:byvthe'ireccentric 94.

Whenthememben @Sihasbeen so...adju'sted, it

willkbei 'apparenti that movement of. member 83 ariydegreetof-:movement of ,member-.83. .may be -impartedtthe 'adj'.ustedicylinder 3l and conse- "q'neiitly,anyiratezofieed:of the pump maybe ob- -tainedil` The detents1l035senve as .locks .toprevent rrotation and change ofv setting of screw` members 9%dnring'operationofjthe pump.

Although'tl rhaveldescribedrrny invention' as .embodied infaslubricatorzpump', it will,'of. course,

' Vbe'f.nridlerstood.A that; the'. same may; `be employed omreciprocatinggpumps havingothel. uses than ".the'i'pllmpilgfofflugbricant;1 I v j Y V-zrNVhat l-claim :and .desire to securezby Letters Patent'ofzthe.Untedfstatesiszef. A; pump of. thechara'cter described,compris- -ing cooperatingrelatively reciprocable piston and v iylindermembers', reciprocating imeans, guide lfneans:l cooperable. Y with and .compelling .straight line movement of; said means; the reciprccable member having=.:abutment means in the plane of kmovemen'tfofgsaid'reciprocatingmeana saidabut- .menti means being spaced longitudinally'of the re- .ciprocablememben ai distance greaterthan the Stroke oIV `said,.reciprocating means, and means to cause operative engagement of said reciprocatinggmeansf andsaid labutment.means whereby s aid,-reciprocatingmeanswill move said reciprocablememben L y 1 1 y L.; -Apump of the characterdescribed, compris- .ing cooperating'relagtively.reciprocable 'piston and cylinder members;V reciprocating vmeans,*guide means ecooperable with 'and compelling'r .straight line'fmovemeritof saidl means, the' reciprocable member 'havingabutment means in the. plane. of

movement of .said'reciprocating.means, said* abutment means being spaced .'longitudinallysot the x means to cause operativefengagement. or" said reciprocable member a. distance greater than the strokeof Vsaid reciprocating means, and adjustable reciprocating n'ieans'andV said abutment vmeans whereby said reciprocating means will move said reciprocable member, said adjustable means be- 'ing operative to regulate the stroke imparted to said reciprocable member by said reciprocating means.

3. A pump ofthe character described, comprising cooperating relatively reciprocable piston and cylinder members, reciprocating means, guide means cooperable with and compelling straight line movement of said means, the reciprocable member having abutment means in the plane of vrmovement of said reciprocating means, said abut- 'ment means beingspaced longitudinally of the reciprocable member a distance greater than the .stroke of said reciprocating means, adjustable means to cause operative engagement of said reciprocating means and said abutment means whereby said reciprocating means will move said reciprocable member, said adjustable means be- 4 ing operative to regulate the stroke imparted to said reciprocable member by said reciprocating means, and means to hold said adjustable means `Vfor reciprocation, reciprocating means, guide means cooperable with and compelling straight line movement of said means, said cylinder hav.- -ing means spaced. longitudinally thereof, said third-namedmeans being in the plane' of movekment of said reciprocating means, means to cause l operative engagement of said reciprocating means and said third-named. means whereby said reciprocating means will move said cylinder, said reciprocating means having a: guide groove, and .meanson said cylinder extending into said groove `to prevent rotation of said cylinder relative to said piston.

- 5. A pump or. the character described, comprisiinga xedpistonand a cylinder mounted thereon for reciprocation, spaced members projectingy from: said cylinder in longitudinal alinement,' means.r positioned between .said

reciprocating members, guide means cooperablewith and com'- .fpelling straight line movement .,of. said means, the length of the stroke of. said means being less than the `distance between said members'andmeans .carried by one of said members; and operable to engage said reciprocating means and hold said reciprocating means in engagementfwith: and v 'said cylinder, lugs on said cylinder overand underlying said flanges, the distance between said lugs being greater than the distance between. said `ilanges plus the stroke ofisaid member, and adjustable means carried by one offsaidlugs and movable into the path of. movementof one ofsaid flanges whereby said one flange will engage said adjustable means upon one stroke of a reciprocation of said plate member and the other iiange will `engage the other lug upon the reversestroke of the reciprocation tor thereby reciprocate'sai'd cyl'- inder. l

7. A pump of the character described; comprising a xed piston having a .cylinder mounted thereon for reciprocation, a plate member mounted forreciprocation longitudinally ofv said cyl.- inder, flanges projecting from said member to'- ward said cylinder, lugs on said cylinder over and underlying said flanges, the distance between said lugs being greater than the distance between said flanges plus the stroke of said member, ad-

justable means carried by one of said lugs and will engage the other lug upon the reverse stroke of the reciprocation to thereby reciprocate 'said cylinder, means to guide the reciprocation uf said cylinder, and means to hold said adjustable means in adjusted position.

8. A pump of the character described, comprising cooperating piston and cylinder members, a plate member positioned laterally of and reciprocable longitudinally of said members and having a flange extending toward said members,

one of said rst-named members being reciprocable relative to the other of said members and having abutment means adapted for driving engagement with said nange, and means to regulate the reciprocation imparted to the reciprocable one of said first-named members by said plate member.

9. A pump of the character described, comg plate member, and adjustable meansto impart' Vlf) prisingcooperating relatively reciprocable pisf-v -tonr andzcylinde'r members,1 a.' plate Vmember Vre.- Y

cprocable longitudinally'of saidmembers, guide means forsaidplate member,.ithe reciprocable vone of saidrst-named members having longi -tudinally ,spaced members cooperable with said an'dgcylinder members, a kplate member recipro-` -V ycable longitudinally. of said members, Aa. fixed the;` relativelyrkreciprocable members, means on said plate` member A'cooperable with 'said .guide Vmembento guideithe `reciprocation of said plate membervthe reciprocable one of said Arst-namedmembers ,having longitudinally spaced vmembers Ycooperable with said plate memberg'and means to Y andcylindenmembera'a plate member reciprocable longitudinally of saidmemberS, saidplate member-having spaced anges extending toward and transverse -to the path of` movement of the Y reciprocableone of said r'st-namedm'embers,

and means carriedr bythe reciprocable one of saidrstfnamed members cooperable withsaid lflanges Vfor regulating the movement imparted toY thefreciprocableone vof vsaid rst-named memy l bers by' said plate member. e

= 12. A pump of thecharacter described, comprising cooperable` relatively reciprocable piston and cylinder members, a plate member reciprocable longitudinally of said members, saidzplate memberhaving spaced flanges extending towardL and transverse tothepa'th 'of movement `ofY the reciprocable one of said first-named members,

meansv carried by the reciprocable" one o'f said rst-named members cooperable with said flanges for regulating Vthe movement. imparted to the `reciprocable one of saidv first-named members by saidplate member, and-guide means on said bers.

Ytively reciprocable OLOF 2,012,244i j Y v A plateV member` @operable with the reciproble onev of? said first-named members. 1-

13. vA pump ot-the character YIdtsci'ibed;coni'- Y p'risingv relatively reciprocable piston and .der members,4 a plate membermovable'relativefto said members andbeing guided for. reciprocating movement substantially. parallel' tofthe. planejaf:

movement Yoi! fthe reclprocable one cfsaid mem.- bers,Y said plate-member having aY bearing'ran eccentric journaled .inVv said bearingpandibeing operable to impart movement to' said :plate member,v end motion transmitting means operatively lpositionedbetween said one reciprocable memguide ymember ext/ending substantially parallel to N extent of motion of [said plate membentransV Vberfa'nd-.said Vplatefmember for the mitted tolsaidonerecip'ocablefmexnber.`

14. Ina iubricatrf urine character desu-mea,

1 ciprocation substahtiauygparauel,toitnefrecipr:

cable ones of lsaid members,'means acting -on f plateV member`v tof reciprocate: 'said V'plate ber, and motion transmitting. means projecting :laterally from eachot thefreciprocableones ot said relatively Vvreciprocable member-S1 'and co4 voperating with said plate member, "said-motin transmitting means extending Vtransversely tok said plate member and acting'to transmit the mqtion of saidplatememberto each ofthe recipro-Y` cable ones of'v ksaid relatively reciprocable mem-v 15. In a lubricatcrot `the chaaracterdescribed', a plurality `of pumps, each fcompiisin'grelatively reciprocable piston and Vcylinder members, a. plate kmexrxber'having a bearing and guided Yfor plate .memberv'to reciprocate plate member, and adjustable means operativelypositioned tween said plate member and each ofthe recipro-` cable Qones /of g said relatively reciprocable mem#V bers for transmitting ,they motion .of `rsaiclplateV a` plurality of pumps;v each; of saidpmpe rec'iprocationj substantially 'parallelv tov the' re- .i ciprocableonesfoi': said members, eccentric means journaled-yin 'said bearingl and acting von1sai l member to: the reciprocable .ones Voil' said V members. f 

